Hermitage of Calcena Monument · Calcena, Aranda, Zaragoza Hermitage in the municipal district of Calcena, a village that worked silver mines in the foothills of the Moncayo since Roman times, and through whose district the river Isuela flows on its way to Trasobares, Tierga and Mesones de Isuela. Photo: Diego Delso (CC BY-SA 4.0) What to see and do in Calcena